Dummy
from Fancyclopedia 2 ca. 1959
A preliminary page layout, which assures the fan publisher that there is room for everything on the page and enables him to justify typed matter, ktp. It's a lot of work, and most fan publishers skip this step. Also, a miniature of an issue of a fanzine in preparation, simply indicating what material will be on each page.
from Fancyclopedia 1 ca. 1944
a miniature of an issue of a fanzine which is being prepared, indicating what material will be on each page. The proposed fanzine Fantasia is the classic example of the dummied but never published fan magazine; by 1938 Hahn had made 22 dummies for the thing, and advertised it all over creation, but it has never appeared, and according to Sw the subscription money has never been returned.

The word is usually improperly used to mean the dummy copy, a typing-up of all the material which will be in the issue, with marks at the end of each@¢@¢ line to indicate how many spaces must be skipped, when cutting the stencil, to@¢@ get even right-hand margins. [THIS IS VISUAL look at the original text.] It's a lot of additional work, and many publishing@ fans refuse to do it.